The ultrasonic cannon is more advanced than the ultrasonic scalpel in that it focuses less energy and traumatizes the skin less than the ultrasonic scalpel. Both ultrasonic scalpel and ultrasonic cannon can be used for wrinkle removal, but the difference between the two is mainly the different trauma to the skin as well as the disparity in treatment results. Ultrasonic scalpel is relatively more traumatic to the skin, can solve the wrinkles in the dermis layer, and improve skin laxity and sagging. The ultrasonic gun is more advanced than the ultrasonic knife, focusing on the lower energy, less traumatic to the skin, can play a lifting and tightening effect on the shallow dermal layer of wrinkles. Usually, good facial care and hygiene, to give timely skin hydration, can also reduce the formation of facial wrinkles.